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By default, security alias is not extracted for warehouse, but is extracted for other security-related objects. This behavior can be then manipulated by the following two global parameters in w_config_custom.inc. For details, see Advanced Configuration Options .:
EXCLUDE_SECURITY_ALIAS - If set to Y, switches off security alias extraction for all feed types. Can be specified as ExcludeSecurityAlias task parameter in the RTR message.
W_INCLUDE_SECALIAS_FORWHS - If set to Y, enables security alias extraction specifically for warehouse objects (has a higher priority than EXCLUDE_SECURITY_ALIAS).
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